Online only Solar Charge Controller Solar regulator 6A Steca Solsum 6.6F 12V-24V Reg6AStecaSolsum6.6F €39.91 SOLAR REGULATOR 6A STECA SOLSUM 6.6F 12V-24V Steca regulator of Solsum line F of 6A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from a solar photovoltaic panel controller. Add to cart